ios 判断数组中是否有相同的数据

2025-03-15 16:44:19
推荐回答(1个)
回答1:

package com.by.boss.utils;

import java.util.Arrays;
import java.util.List;

/**
* 工具类:实现一些数组的常用方法
* @author 高伟
* @date Aug 15, 2011 6:01:42 PM
* @description:
*/
public class ArrayUtils {

/**
* 获取指定元素item在指定数组array中的下标
* getItemIndexOfArray
* @param array
* @param item
* @return
* 高伟
* Aug 15, 2011 6:02:26 PM
*/
public static int getItemIndexOfArray(Object[] array , Object item) {
List list = Arrays.asList(array);
return list.indexOf(item);
}

/*
* main method
*/
public static void main(String[] args) {
String[] array = new String[]{"AAA","BBB","CCC"};
String item1 = "DDD";
System.out.println(ArrayUtils.getItemIndexOfArray(array, item1));
String item2 = "BBB";
System.out.println(ArrayUtils.getItemIndexOfArray(array, item2));

/**
* 输出结果:
* -1
* 1
*/
}
}
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